Fix decl for tfind(3)

src/include/search.h

@@ -47,7 +47,7 @@ extern void	 remque __P((void *));
 
 extern void	*tdelete __P((const void *, void **,
 			      int (*)(const void *, const void *)));
-extern void	*tfind __P((const void *, void **,
+extern void	*tfind __P((const void *, void * const *,
 			      int (*)(const void *, const void *)));
 extern void	*tsearch __P((const void *, void **, 
 			      int (*)(const void *, const void *)));

src/lib/libc/stdlib/tfind.c

@@ -21,7 +21,7 @@ typedef struct node_t
 void *
 tfind(vkey, vrootp, compar)
 	const void	*vkey;		/* key to be found */
-	void		**vrootp;	/* address of the tree root */
+	void		*const *vrootp;	/* address of the tree root */
 	int		(*compar) __P((const void *, const void *));
 {
     char *key = (char *)vkey;